baber/WOPTO huggingface dataset:
Patent JP-H0525794-A (JP)
Title: Method for producing roll paper for newsprint
Inventor: YAMAKAWA SHIGERU
IPC: D21H21/14
Filed: 1991-07-12
Abstract: PURPOSE:To specify coefficient of dynamic friction of roll paper for newsprint and prevent occurrence of breakage by collision between roll papers by incorporating an agent for increasing coefficient of friction into a paper-making raw material and making the raw material containing the above-mentioned agent into paper. CONSTITUTION:A filler composed of hydrated silicate for paper making having particles containing 80% particles having 1-30mum particle diameter and <=0.4% particles having >=70mum particle diameter is added to a paper-making raw material of 0.2-3wt.% based on pulp kept in absolute dry condition and the raw material containing the filler is made into a paper to provide the objective paper wherein coefficient (u2) of dynamic friction by JIS P 8147 between papers constituting roll paper is kept to 0.45-0.70 and kept larger than coefficient (u1) of dynamic friction between outer faces of the upper paper of the above- mentioned roll paper and upper paper of other roll paper and the difference (u2-w1) id kept to >=0.14.
Patent JP-H01108108-A (JP)
Title: Production of fibrous silicon-oxygen-carbon compound
Inventor: SHIMOKAWA KATSUYOSHI
IPC: D01F9/10
Filed: 1987-10-20
Abstract: PURPOSE:To easily produce a fibrous silicon-oxygen-carbon compound in high yield, by reacting a mixture of a silicon oxide or a silicate mineral and carbon in a specific atmosphere gas under heating. CONSTITUTION:A silicon oxide or a silicate mineral and carbon are used as starting raw materials and a mixture of the above components is heated and reacted by using a specific atmosphere gas to obtain a fibrous silicon-oxygen- carbon compound(SIOC). The gas used as the atmosphere of the above reaction is hydrogen, ammonia gas, hydrocarbon gas, carbon monoxide, carbon dioxide, alcohols or their mixture. The rate of production of the fibrous ceramic can be controlled by mixing the gas with conventional argon gas or nitrogen gas to keep the concentration of the gas at a constant level. The rate of production of the SIOC fiber closely depends upon the reaction temperature and reaction time and a linear velocity exceeding 4.0cm/sec is liable to cause the imbalance of the concentrations of the elements and the lowering of the yield.
Patent JP-H08188641-A (JP)
Title: Conjugated polymer having spiro center and use thereof as electroluminescent material
Inventor: BUIRI KUROIDAA
IPC: C07C25/22
Filed: 1995-10-13
Abstract: Conjugated polymers (I) contg. recurring units, having a 9,9'-spiro-bifluorene ring system, of formula (II) are new: A, B, C, D = 1-15 arylene, heteroarylene and/or vinylene gps. and these and the spiro-bifluorene ring system may be substd.; S = H or a substit., m, n = 0 or 1. Also claimed are: (a) the use of (I) as electroluminescent material; (b) electroluminescent material contg. (I); (c) prodn. of the material by applying a (I) film to a substrate; and (d) electroluminescent device with active layer(s), at least one or which contains (I).
Patent JP-H05111285-A (JP)
Title: Error detector and detecting method for commutation signal of three-phase brushless motor
Inventor: HASEGAWA TAKEHIKO
IPC: G01P13/04
Filed: 1991-10-15
Abstract: PURPOSE:To provide an error detector for three-phase brushless motor in which an error occurring in a commutation sensor can be detected at any time. CONSTITUTION:Three-phase commutation signals having phase difference of 120 deg. are split into 60 deg. sections 1-6 having different phase states depending on the combination of high and low levels of respective phase signals. When the variation from section 1 to section 6 due to rotation of motor deviates from an order predetermined based on the information of the rotational direction of motor, a decision is made that the commutation signal is erroneous.
Patent JP-S63123924-A (JP)
Title: Pilot burner device
Inventor: YOSHINARI YUJI
IPC: F23Q9/00
Filed: 1986-11-10
Abstract: PURPOSE:To improve flame stability and durability, by a method wherein, in a title device for a gas burner, a pilot gas flow passage formed by a channel formed in a C-shape in cross section is formed in the peripheral edge of the burner head, and the device forms a nozzle mixing system so that injection is effected in a state to mix together fuel and air. CONSTITUTION:Pilot gas 18 introduced through a pilot gas feed pipe 8 flows along a peripheral wall part 4 of a flow passage 5 and is collided with a shield plate 10. The pilot gas is injected through a pore 6 in a direction shown by an arrow mark 20 as it is mixed with air for combustion fed from below. The air-fuel mixture is ignited by means of spark generated between an ignition porcelain 16 and an earth rod 7 to form a pilot flame 21. Since a device forms a nozzle mixing system as in this constitution, regulation of a pilot flame is facilitated,flame is stabilized, and the size of a pore and proper arrangement enables improvement of flame stabilizing ability.
Patent JP-H05109229-A (JP)
Title: Tape cassette
Inventor: ZAITSU OSAMU
IPC: G11B23/087
Filed: 1991-10-15
Abstract: PURPOSE:To provide a standard tape cassette constituting an opening part larger in size than the opening part of a miniature cassette while singly forming a running system independent of the kind of cassettes, in a system using both cassettes such as the miniature tape cassette with short recording time and the standard tape cassette with long recording time. CONSTITUTION:Zones 51, 52 shown by a hatching are the parts overlapped with tape guiding zones 12, 39 on each of the S-cassette 1 and L-cassette 30. The tape guiding zone 12 of S-cassette 1 is covered not for all but for a part by either left and right of these overlapping parts 51, 52. Thus, by making these parts to cover only a part, the tape guides 37, 38 of L-cassette 30 can be arranged expectively outward against the tape guides 1a, 1b of S-cassette as shown in the figure, then the width W2 for L-cassette 30 is made wider than the width W1 of opening part for the S-cassette 1.
Patent JP-H06120605-A (JP)
Title: Variable wavelength light source
Inventor: KOGURE TAICHI
IPC: H01S3/10
Filed: 1992-10-05
Abstract: PURPOSE:To provide a high-output and nondeflecting variable wavelength light source by amplifying a light narrow in wavelength band area, which has permeated a variable wavelength filter from an end face emission type light emitting diode module, using an Er-added optical fiber and a laser diode module for excitation. CONSTITUTION:This light source is of such constitution that an end face emission type light emitting diode module 1 and a variable wavelength filter 7 are connected with each other, that the output end of the variable wavelength filter 7 and a laser diode module 2 for excitation are connected to the respective input ports of the photosynthetic wave divider 4, and that an Er-added fiber 3 is connected to the output port of the photosynthetic wave divider 4.
Patent JP-H02185876-A (JP)
Title: Sheet post clamp assembly
Inventor: FUREDERITSUKU SHII SHIRUPURIN
IPC: B62J1/08
Filed: 1989-10-12
Abstract: PURPOSE: To facilitate fixing operation of a seat post clamp assembly by composing the clamp assembly for installing a seat of a bicycle or the like in a seat post to be provided with two clamp sections enlarged by wedge action by tightening of a bolt to be engaged with an inner surface of a clamp tube. CONSTITUTION: A clamp assembly 10 is provided on an upper part of a seat post member 16 inserted into a seat tube 14 of a bicycle 12, and the seat post member 16 comprises a seat post 18 and a clasp tube 20. A clamp assembly 22 comprises a single member of a cylindrical rod, and this is composed of a main section 24 and clamp sections 26, 28. By tightening a bolt 34, the outer diameter of the clamp assembly 22 is enlarged by wedge action of the clamp sections 26, 28 applied on the main section 24, thereby engages tightly with the inside of the clamp tube 20.
Patent JP-H04144491-A (JP)
Title: Image processor
Inventor: FUKUOKA HIROYUKI
IPC: H04N7/015
Filed: 1990-10-05
Abstract: PURPOSE:To make it possible to receive an image by an existing television(TV) image receiver having a fixed aspect ratio without generating distortion by extending an image signal compressed in a horizontal time direction in accordance with the compression ratio and segmenting the extended image signal from the center of its image only for an effective scanning period. CONSTITUTION:A writing address generator 10 generates a writing address in accordance with the output (synchronizing signal) of a synchroning separator circuit 8 and the output of a PLL circuit 9 synchronized with the output of the circuit 8 and a reading address generator 11 generates a reading address in accordance with outputs obtained by frequency-dividing the outputs of the circuits 8, 9 into 1/N (N is an integer) by a frequency divider 13. The frequency dividing ratio 1/N of the divider 13 is controlled by a command discriminating circuit 14 and the value of the frequency dividing ratio is set up by the circuit 14 based on an input command so that the output signal of an 1H memory 4 becomes equivalent to the simultaneous execution of extending operation in the horizontal time direction and segmenting processing in the horizontal effective period. Consequently, an image signal compressed in the horizontal time direction can be received by the current TV image receiver without generating any distortion.
Patent JP-H1080146-A (JP)
Title: Inverter apparatus
Inventor: OKAMI HIROAKI
IPC: H03K17/66
Filed: 1996-08-30
Abstract: PROBLEM TO BE SOLVED: To provide an inverter apparatus whose efficiency is enhanced by relaxing the switching loss of a switching element. SOLUTION: An inverter apparatus is provided with a first switching element 11 and a second switching 12 which are connected in forward series. It is provided with a DC power supply 20 which is connected to positions which cross over the first switching element 11 and the second switching element 12 wholly. It is provided with an inverter load 90 which contains at least one of oscillating closed circuits 91, 93, 94. It is provided with a capacitor 31, for an arm, which is connected to positions which cross over the first switching element 11 and the inverter load 90 wholly. It is provided with a switching control circuit 19 which alternately allows the first switching element 11 and the second switching element 12 to conduct so as to energize the oscillating action of the inverter load 90.
Patent JP-S63120683-A (JP)
Title: Thermal transfer material
Inventor: TANAKA TSUNEO
IPC: B41M5/382
Filed: 1986-11-11
Abstract: PURPOSE:To obtain a thermal transfer material for forming a an overhead projector sheet, by respectively specifying or more the transmittances of an yellow ink layer, a magenta ink layer and a cyan ink layer. CONSTITUTION:The transmittances of process color ink layers upon recording on an overhead projector sheet are so set that a yellow ink layer has a transmittance of at least 85% in a wavelength range of 550-700 nm, a magenta ink layer has a transmittance of at least 80% in a wavelength range of 400-480 nm and at least 85% in a wavelength range of 600-700 nm, and a cyan ink layer has a transmittance of at least 80% in a wavelength range of 400-550 nm. A thermal transfer material comprises an ink layer comprising a coloring matter and a heat-fusible vehicle as main constituents on a base. By using the transfer material, characters or patterns are formed on a receiving sheet for use on an overhead projector, such as a polyester sheet, by using thermal energy supplied from a thermal transfer printer or the like, thereby forming the overhead projector sheet. When images recorded on the overhead projector sheet are projected by the overhead projector, extremely bright and clear projected images can be obtained.
Patent JP-H03135367-A (JP)
Title: Dc-dc converter
Inventor: KAMEYAMA SHIGERU
IPC: H02M3/335
Filed: 1989-10-14
Abstract: PURPOSE:To reduce loss by one-crystal type by a method wherein a capacitor is connected in parallel to a switching element while a saturable reactor is connected between a secondary winding and a rectifying diode. CONSTITUTION:When a transistor Q1 turn off, the exciting current of the primary winding L1 of a transformer T1 is made to flow through a capacitor C3. Accordingly, a parasitic capacity C2 and the terminal voltage of the capacitor C3 or a voltage between the drain and the source of the transistor Q1 rise up slowly. Accordingly, switching loss due to the superpose of a voltage and a current upon turn-off of the transistor Q1 will never be generated. Upon turn-off, resonance phenomenon due to the primary winding L1, the parasitic capacity C2, the capacitor C3 and the like is continued by a saturable reactor L4 between a secondary winding L2 and a rectifying diode D2. According to this method, the terminal voltage of the transistor Q1 is lowered to zero whereby switching loss may be prevented.
Patent JP-H03129920-A (JP)
Title: Light driven semiconductor device
Inventor: KUMAGAI NAOKI
IPC: H03K17/78
Filed: 1989-10-14
Abstract: PURPOSE:To drive an output switching device at high speed by charging a gate driving capacitor of a switching device to the driving potential in a part of an off-period by the power source of a load side. CONSTITUTION:Between a drain electrode 12 and a source electrode 13 of a MOSFET 11 on an insulation gate type switching device for the output, a gate driving capacitor 16 is connected. In such a state, the capacitor 16 is charged by applying a high voltage to the drain electrode 12 and the source electrode 13 from the power source of a load side which is not shown in the figure, when the element is turned off. On the other hand, when an LED 24 for turn-on is allowed to emit a light beam, a charging MOSFET 18 is turned on by a photodiode array 20 of a charging side. Simultaneously, a discharge MOSFET 19 is turned off by a photodiode array 23 of the discharge size. As a result, by the capacitor 16, the output MOSFET 11 is driven and turning on.
Patent JP-H11109307-A (JP)
Title: Liquid crystal display device
Inventor: MATSUMOTO TOSHIHIRO
IPC: G02F1/133
Filed: 1997-09-30
Abstract: PROBLEM TO BE SOLVED: To obtain high speed response and high performance without deteriorating an electrooptical characteristic of an STN(super twisted nematic) type liquid crystal display device having twisted orientation of 210 to 270 deg.. SOLUTION: Pre-tilt angles (a), (b) for oriented films 4a, 4b of a pair of substrates 2a, 2b of the liquid crystal display device 1 holding an STN type liquid crystal 8 having the twisted orientation of 210 to 270 deg. between them are selected within the ranges of respectively 1 deg.<=a<=3 deg. and 10 deg.<=b<=15 deg., and a mean pre-tilt angle is selected within the range of 6 deg.<= and <=9 deg.. The liquid crystal display device 1 is provided with a response speed of a start faster than usual. At this time, a d/p ((d) shows distance between substrates 2a, 2b of liquid crystal display device 1, (p) shows pitch length of twisted orientation of liquid crystal molecule 9) margin is enlarged without deteriorating the electrooptical characteristic.  Thus, the kinds of the usable liquid crystal 8 are made more, and by selecting the liquid crystal 8, the characteristic of the liquid crystal display device 1 is improved.
Patent JP-S62131795-A (JP)
Title: Driving circuit for stepper motor
Inventor: TSUKAHARA AKIHIKO
IPC: H02P8/38
Filed: 1985-11-29
Abstract: PURPOSE:To always detect effectively the occurrence of a stepping out of a stepper motor by comparing the number of driving pulses from an original to a target position with the number of driving pulses when the motor returned from the target position to the origin. CONSTITUTION:When the stepper motor is driven from an origin to a target position, a counter 15 presets a driving pulse number data N1. The counter 15 is counted down whenever a driving pulse is input, and when the output data of the counter 15 becomes '0', a stepper motor S is stopped. When driven by a next clock in a direction for returning to the origin, a position switch 1 is closed. When returned to the origin, the output data N2 of the counter 14 at this time is continued to be output as it is. The data N2 is compared with the data N1 preset in the counter 15. If equal, a comparator 20 produces an output (m) being low, and if not, the output becomes high to fire a light emitting diode 21 to detect a stepping out.
Patent JP-H11104867-A (JP)
Title: Method for laser beam-welding of aluminum or aluminum alloy member
Inventor: MATSUMOTO TAKESHI
IPC: B23K26/32
Filed: 1997-09-30
Abstract: PROBLEM TO BE SOLVED: To weld two aluminum alloy members at a high speed and to prevent the occurrence of defective welding by arranging a filler metal in a thin plate side of the butting parts of end surfaces to each other in the two aluminum alloy members having different thicknesses and welding by irradiating this filler metal with a laser beam. SOLUTION: The end surfaces of two aluminum alloy members of a thick plate 3 and a thin plate 4 are butted to each other and a filler metal 2 is arranged in the butting part on the aluminum alloy member 4 at the thin plate side. At the time of irradiating this filler metal 2 with a laser beam 1, the filler metal 2 is melted, a melt-starting part of the filler metal 2 is formed just after starting the irradiation of the laser beam 1 and the welding is progressed. By this method, a welded metal part without generating deflective welding, is formed. That is, at the time of welding, in the case of making the thin plate side member 4 an aiming position while irradiating the filler metal 2 with the laser beam 1, the filler metal is added while keeping the welding condition at a low heat inputting side in the thin plate side and the formation of a molten metal can be accelerated.
Patent JP-H0583940-A (JP)
Title: Switching power supply equipment
Inventor: YOSHIKAWA TAKETOSHI
IPC: H02M3/28
Filed: 1991-09-18
Abstract: PURPOSE:To reduce the loss and cost of a partial resonance type switching regulator. CONSTITUTION:A serial circuit comprising the first insulation gate type FET 2, a reactor 3, the primary winding 4 of a transformer 6 and the second insulation gate type FET 5 is connected to a DC power supply 1. A capacitor C3 is connected in parallel to the primary winding 4 and the rector 3 through the third and fourth FET 7 and FET 8. A reactor 18 is connected in parallel to the secondary winding 9 through a diode 19. The reactor 18 stores energy during OFF period and discharge it to load side during ON period. The first FET 2 and second FET 5 perform ON/OFF control in a constant period. The third FET 7 and fourth FET 8 perform ON control in part of the OFF period.
Patent JP-S63123898-A (JP)
Title: Synthesis of diamond by vapor-phase process
Inventor: HIROSE YOICHI
IPC: C30B29/04
Filed: 1986-11-12
Abstract: PURPOSE:To deposit a diamond on a substrate in the form of granule or film at high rate of deposition and enlarged deposition area, by synthesizing a diamond in vapor phase under irradiation of light from a carbon source compound and a hydrogen source compound such as atomic hydrogen containing excitation seed produced by utilizing a photo-sensitization action. CONSTITUTION:The space in a reaction chamber 11 is evacuated through an evacuation port 19 and a substrate 20 for the deposition of diamond such as silicon is placed on a substrate-supporting table 14 rotatably supported by a rotation shaft 12 and furnished with a substrate heater 13. The top of the reaction chamber 11 is furnished with a quartz tube 15 provided with a low-pressure mercury lamp 16 which is spirally wound round the quartz tube and electrically connected to a power source 17. The quartz tube 15 is supplied through an upper inlet port 18 with 0.1-90vol% carbon source compound such as acetone, alcohol, etc., 99.9-10vol% hydrogen source compound such as H2 gas or its mixture with inert gas and a photo-sensitizing gas composed of the same element to the element used as the irradiation source and selected from Hg, He, Ar, etc., in an amount of 0.00001-0.1pt.vol. per 1pt. of the H2 gas, etc. The introduced gas is excited with the mercury lamp 16 to effect the deposition of diamond on the substrate 20.
Patent JP-H09198731-A (JP)
Title: Magneto-optical recording medium
Inventor: NAKAJIMA JUNSAKU
IPC: G11B11/10
Filed: 1996-10-08
Abstract: PROBLEM TO BE SOLVED: To make it possible to obtain good CNR and to increase the recording density even when a short mark is reproduced from a magneto-optical disk. SOLUTION: The magneto-optical disk is provided with a recording layer 5 which records information as a mark and a reproducing layer 3 which is laminated on the recording layer 5, is magnetostatically coupled, but not exchange-coupled, the recording layer 5 and to which magnetization of the recording layer 5 is transferred at the time of a high temperature. Then, information is read out by utilizing the temperature distribution produced by a light beam at the time of reproduction. A backing layer 7, which is a soft magnetic body constituted of a ferromagnetic material, is installed on a surface, on the side not provided with the reproducing layer 3, of the recording layer 5.
Patent JP-H02114173-A (JP)
Title: Ultrasonic probe apparatus
Inventor: WATANABE TAKEHARU
IPC: G01N29/24
Filed: 1988-10-24
Abstract: PURPOSE:To improve impulse response with respect to frequency resulting in the improvement of sensitivity by providing a piezoelectric body, a rear metal plate and a front metal plate. CONSTITUTION:Acoustic impedance of a rear metal plate 12 is larger than that of a piezoelectric body 11, acoustic impedance of a front metal plate 13 is midway between that of the piezoelectric body 11 and that of a specimen 14, and the number of the piezoelectric bodies is an odd number. Function is performed wherein a joint face between the metal plate 12 and the piezoelec tric body 11 and a joint face between the piezoelectric body 11 and the metal plate 13 are to be a node and a loop of ultrasonic oscillation, respectively. As a result, the function is performed wherein impulse response with respect to frequency, namely sensitivity, is improved. Also, the function wherein width of ultrasonic pulses given to the specimen 14 is narrowed as well as the function wherein reference frequency of ultrasonic pulses given to the specimen 14 is realized.
Patent JP-H06120673-A (JP)
Title: Multilayer printed wiring board and production thereof
Inventor: TOKIWA TAKESHI
IPC: H05K3/46
Filed: 1992-10-07
Abstract: PURPOSE:To obtain a multilayer printed wiring board mounting a capacitor effective for downsizing of electronic circuit in which the capacitor is integrated with high positional accuracy with no influence on the capacitance thereof. CONSTITUTION:After circuit patterns 2, 2a, 2b are formed on a nonwoven glass board 1 impregnated with epoxy resin, a dielectric laminate 4 is inserted into an upwardly tapered hole 3 made in the inner face at a size corresponding to the external dimension of the dielectric laminate 4. An electrode part 5 is then formed of a metallize paste to be conducted with the circuit patterns 2a, 2b and then it is sandwiched through epoxy resin adhesive sheets 6 by printed wiring boards 9a, 9b for outer layer and hot-pressed. Since the printed wiring boards 9a, 9b are conducted through the conductor part 7 of a through hole 8, the dielectric laminate 4 does not fall off, positional accuracy is enhanced, and thermal influence on the dielectric laminate 4 is suppressed as compared with a case where an unfired ceramic board is employed and highly accurate capacitance can be sustained.